2017職稱英語(yǔ)理工類A級(jí)完形填空強(qiáng)化輔導(dǎo)(1)

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2017年職稱英語(yǔ)理工類A級(jí)完形填空強(qiáng)化輔導(dǎo)(1)
    應(yīng)對(duì)策略:
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    (2)語(yǔ)法知識(shí)的總結(jié)和固定搭配、詞組的記憶。這樣在做題時(shí),閱讀整篇文章,考生才能從頭判斷每個(gè)空所缺的詞的語(yǔ)言形式,如詞類、時(shí)態(tài)、語(yǔ)態(tài),并判斷該詞應(yīng)具有的符合文章上下文的詞義,后從給出的四個(gè)選項(xiàng)中,選出在語(yǔ)法與詞義上均與原文相符合的一個(gè)。
    閱讀下面的短文,文中有15處空白,每處空白給出了4個(gè)選項(xiàng),請(qǐng)根據(jù)短文的內(nèi)容從4個(gè)選項(xiàng)中選擇1個(gè)佳答案。
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    Better Solar Energy Systems: More Heat, More Light
    Solar photovoltaic thermal energy systems, or PVTs, generate both heat and electricity, but (1) now they haven’t been very good at the heat-generating part compared to a stand-alone solar thermal collector. That’s because they operate at low temperatures to cool crystalline silicon solar cells, (2) lets the silicon generate more electricity but isn’t a very efficient way to gather heat.
    That’s a problem of economics. Good solar hot-water systems can harvest much more energy than a solar-electric system at a substantially lower (3) . And it’s also a space problem: photovoltaic cells can (4) up all the space on the roof, leaving little room for thermal applications.
    In a pair of studies, Joshua Pearce, an associate professor of materials science and engineering, has devised a (5) in the form of a better PVT made with a different kind of silicon. His research collaborators are Kunal Girotra from Thin Silicon in California and Michael Pathak and Stephen Harrison from Queen’s University, Canada.
    Most solar panels are made (6) crystalline silicon, but you can also make solar cells out of amorphous silicon, commonly known as thin-film silicon. They don’t create as much electricity, but they are lighter, flexible, and cheaper. And, because they (7) much less silicon, they have a greener footprint. (8) , thin-film silicon solar cells are vulnerable to some bad-news physics in the form of the Staebler-Wronski effect.
    “That means that their efficiency drops when you (9) them to light—pretty much the worst possible effect for a solar cell,” Pearce explains, which is one of the (10) thin-film solar panels make up only a small fraction of the market.
    However, Pearce and his team found a (11) to engineer around the Staebler-Wronski effect by incorporating thin-film silicon in a new (12) of PVT. You don’t have to cool down thin-film silicon to make it work. In fact, Pearce’s group discovered that by heating it to solar-thermal operating temperatures, near the boiling (13) of water, they could make thicker cells that largely (14) the Staebler-Wronski effect. When they applied the thin-film silicon directly to a solar thermal energy collector, they also found that by baking the cell once a day, they (15) the solar cell’s electrical efficiency by over 10 percent.
    1. A. unless B. until C. when D. if
    2. A. which B. what C. that D. who
    3. A. reward B. bill C. cost D. pay
    4. A. take B. move C. set D. live
    5. A. decision B. suggestion C. qualification D. solution
    6. A. for B. as C. by D. with
    7. A. retrieve B. require C. merge D. exchange
    8. A. certainly B. luckily C. unfortunately D. immediately
    9. A. cover B. expose C. relate D. face
    10. A. restrictions B. advances C. strengths D. reasons
    11. A. way B. part C. result D. subject
    12. A. size B. type C. shape D. brand
    13. A. area B. place C. point D. extent
    14. A. promoted B. overcame C. improved D. assessed
    15. A. defined B. wasted C. lowered D. boosted
    參考答案: BACAD DBCBD ABCBD